Exercise: Friedman Test
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Question 1 of 1
1. Question
Data File: Friedman.MTW
Situation:
A marketing analyst wants to compare the relative effectiveness of three types of advertising: direct mail, newspaper, and magazine. The analyst performs a randomized block experiment. For 36 clients, the marketing firms used all three types of advertising over one year and recorded the year’s percentage response to each type of advertising.
Use the “Friedman.MTW” data file to determine if there is a difference in response rates between advertising methods.
Question:
Is there a difference in response rates between advertising methods?
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